How do I specify search parameters other than file name?
I want to, for example, retrieve a list of JPEGs on my USB drive that are larger than 1 MB.
I am interested in GUI solutions only — something I would feel comfortable recommending to a novice user who has come to me for help with Ubuntu.
man find
will get you started, andfind --help
will remind you once you get to know it a bit. Or, search the net for articles on "linux find", or check wikipedia article. As for the nautilus search, it says "Search for files by Name", so that's all you can really expect.